Joining SharePoint list

I’d like to use this tool to join 2 SharePoint list. I build a very simple join returning only a field or two, but it errors out when I try to run it I get this error

Got Error 4216’{0} OData: HTTP 500 Internal Server Error

<?xml version "1.0" encoding="utf-8" standalone="yes"?>

<'from HUB

Any ideas?

Can you show us a screenshot of the connection property and error message? Thanks!